We must be certain that we all realize that our enemy is not an enemy that is located in one single place. There are terrorist cells all around the globe.
There are no bona fide treatments available for embryonic stem cells. There is nothing in the laboratory, and there is certainly nothing in the clinics available to patients.
You could double the number of synaptic connections in a very simple neurocircuit as a result of experience and learning. The reason for that was that long-term memory alters the expression of genes in nerve cells, which is the cause of the growth of new synaptic connections.
I like nonsense; it wakes up the brain cells.
What do cells do when they see a broken piece of DNA? Cells don’t like such breaks. They’ll do pretty much anything they can to fix things up. If a chromosome is broken, the cells will repair the break using an intact chromosome.
The cells of an organism are nodes in a richly interwoven communications network, transmitting and receiving, coding and decoding. Evolution itself embodies an ongoing exchange of information between organism and environment.
Like many insects, flies are most sensitive to green light. This means that they would see their world as ‘black and white,’ in that they can’t see the multiple colors required to reconstruct a color image of the world. They do, however, have specialized cells that enable them to see ultraviolet wavelengths.
At the end of the 1970s, I was a young researcher at the Weizmann Institute with an ambitious plan to shed light on one of the major outstanding questions concerning living cells: the process of protein biosynthesis.
When we talk about stem cells, we are actually talking about a complicated series of things, including adult stem cells which are largely cells devoted to replacing individual tissues like blood elements or liver or even the brain.
The thyroid cells take up iodine with particular avidity and are able to store it up in great quantities.
I think that animals aren’t less intelligent than humans, they’re just of a different intelligence. We have five million smell-sensitive cells in our nose, they have two hundred and fifty million – they can smell emotion. They can smell different types of emotion, they just have another type of intelligence.
For scientists, growing cells took so much work that they couldn’t get much research done. So the selling of cells was really just for the sake of science, and there weren’t a lot of profits.
The body and dendrites of a nerve cell are specialized for the reception and integration of information which is conveyed as impulses that are fired from other nerve cells along their axons.
My fat cells have a memory like Einstein! I’m proof that surgery is not a magic potion. There are many ways to sabotage it.
The first misconception is that embryonic stem cell research is not legal. The fact is, embryonic stem cell research is completely legal. Research on embryonic stem cells has taken place for years.
Within six months of starting my Ph.D. work in 1956, I had already obtained feeding tadpoles derived from transplanted nuclei of embryonic cells.
Economic depression cannot be cured by legislative action or executive pronouncement. Economic wounds must be healed by the action of the cells of the economic body – the producers and consumers themselves.
Until 1985, when my lab found the protein they are made of, aquaporins hadn’t yet been identified. There had been a controversy in biology for more than 100 years about how water moved through cells.
I’ve been thinking about the record since I reached the fifty plateau. But you think about it and then you let it go because you can’t waste many brain cells on hours thinking about it.
We’re scientists; we’re curious about how nature works, but we’re also do-gooders. It’s fantastic to think that the same experiments we’d do to understand how information gets into cells could have a practical side to them, too.
We managed to prepare a cell-free system which was active when suitably supplemented, and this was a novel result since the process of oxidation was believed to require the integrity of the cells.
Cell culture is a little like gardening. You sit and you look at cells, and then you see something and say, ‘You know, that doesn’t look right’.
Without micronutrients to remove waste, cells become congested, DNA gets broken, and the body doesn’t have the ability to repair itself. Eventually, you get sick.
Printing novel DNA might open the way to achievements once only conceivable in science fiction: designer bacteria that can produce new chemicals, such as more efficient fuels, or synthetic versions of our cells that make us resistant to the effects of radiation.
When you think of all the things that are made from oil or in the chemical industry, if in the future we could find cells to replace most of those processes, the ideal way would be to do it by direct design.
Unlike the heart or kidney, which have a small, defined set of cell types, we still do not have a taxonomy of neurons, and neuroscientists still argue whether specific types of neurons are unique to humans. But there is no disputing that neurons are only about 10 percent of the cells in the human brain.
If stem cells divide equally, so both daughter cells look more or less the same, each one becomes another stem cell. If the split is unequal, neurons form prematurely.
Pluripotent cells have the ability to grow into any cell in the body.
Stem cells are probably going to be extremely useful.
Aside from bringing back extinct species, reanimation could help living ones by restoring lost genetic diversity. The Tasmanian devil (aka Sarcophilus harrisii) is so inbred at this point that most species members can exchange tumor cells without rejection.
Nitric oxide production by immune cells is one of the key mechanisms that our bodies use to destroy diseased cells. Enhancement of these types of immune responses is seen consistently with many medicinal mushrooms that have been tested by cancer researchers.
Detention cells in Hong Kong are not pleasant. In Thailand they are even worse. In Hong Kong you are at least allowed to see your lawyers.
The average person doesn’t understand what a stem cell is. There’s a lack of health literacy in our nation. So the public can’t really get into this dialogue because they don’t understand the complexity of stem cells, not the faith-based approach, not the ideological or political, but the science behind stem cells.
Yes, we are looking into gene therapies for immune cells to target senescent cells.
Astonishingly, in spite of decades of research, there is no agreed theory of cancer, no explanation for why, inside almost all healthy cells, there lurks a highly efficient cancer subroutine that can be activated by a variety of agents – radiation, chemicals, inflammation and infection.
I’m extremely happy and extremely grateful to these stem cells. I started tennis again, and it’s going very well. I have no problem moving my arm. So I’m delighted.
I wondered whether the nuclear transfer techniques could be used to introduce purified macro-molecules into an egg, and hence into embryonic cells.
Marriage is a difficult project. When seven years have passed and all your body’s cells have been replaced, you’re meant to experience that seven-year itch.
Except for certain moments – when cells are dividing, for instance – chromosomes don’t form compact, countable bodies inside cells. Instead, they unravel and flop about, which makes counting chromosomes a bit like counting strands of ramen in a bowl.
In my lab, we’re finding that psychological stress actually ages cells, which can be seen when you measure the wearing down of the tips of the chromosomes, those telomeres.
Your body has something in the neighborhood of 40 trillion cells – quite a consulting committee. Call on it when you’re confused or undecided. Relax quietly and ask your body what it has to say.
Every single cell in each person’s body tells us whether that person is a male or a female. There is no human being in history whose cells have some mixture of the two, nor anyone who has ever been able to change that cellular reality.
In the early Sixties, having begun to describe the physiology of cells in the adult cat visual cortex, David Hubel and I decided to investigate how the highly specific response properties of cortical cells emerged during postnatal development.
I had just finished playing a doctor in Doctors’ and I had had to tell somebody that they had cancer. In that moment I thought, He’s doing what I did!’ We sat down and he said, I’m sorry, Mr. Timothy, but I’ve got bad news.’ I thought, Oh!’ He told me that they had found cancerous cells, but not a lot.
So why in the world would anyone support the unethical, failed use of embryonic stem cells instead of the ethical, successful use of adult stem cells? Because they do not know the difference.
Dogmas are collective conceptual prisons. And the strange thing is that people love their prison cells because they give them a sense of security and a false sense of ‘I know.’ Nothing has inflicted more suffering on humanity than its dogmas.
Two prisoners whose cells adjoin communicate with each other by knocking on the wall. The wall is the thing which separates them but is also their means of communication. It is the same with us and God. Every separation is a link.
